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Grokking the Coding Interview Patterns in C++

Solution: Merge Intervals

Explore how to merge overlapping intervals by first sorting them and then iterating through the list to combine intervals that overlap. This lesson helps you understand an optimized approach with time complexity O(n log n) to handle scheduling and range problems effectively.

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Statement

We are given an array of closed intervalsclosedintervals called intervals, where each interval has a start time and an end time and is represented as intervals[i] = [starti, endi]. Your task is to merge all the overlapping intervalsOverlapping intervals are two or more intervals with at least one common point in time. and return an array of the resulting non-overlapping intervals that cover all the intervals in the input.

Constraints:

  • 1≤1 \leq intervals.length ...